

With the new series in publication, Willingham decided to use Jack of Fables in introducing other literary characters in the Fables mythos and to expand its universe to include the Old West and the Folklore of the United States. Jack of Fables was first previewed in Fables #50 before finally being released in July 2006. However, editor Shelly Bond suggested that Horner be put in a separate comic instead, stating that she did this because she didn't want to lose her "favorite" character in the series. This story arc was supposed to be the last time Jack Horner would appear in Fables, and Willingham initially wanted to write him off the series.

This led to the two-part story arc entitled Jack Be Nimble where Jack created an action film trilogy of himself that elevated his popularity with the Mundies, which in turn also increased his powers. He and Willingham decided to use Jack in showing how a Fable might use this theory to further his/her own gain. The decision to remove the character of Jack Horner from the series came when artist Mark Buckingham proposed to expand the Fables' logic of "popularity equals power", which stated that fairy tale characters were only as strong as their popularity in the real mundane world. The series has since been collected in both trade paperback and deluxe edition hardcovers. In 2007, it was nominated for numerous Eisner Awards and won Best Lettering for Todd Klein and Best Cover Artist for James Jean. It ran for 50 issues from July 2006 to March 2011, and received positive reception from critics and fans alike during its release, though over time would be criticized because of the main character's abhorrent sociopathy.

A preview of its first issue was shown in Fables #50, and the series itself debuted in July 2006. While Jack of Fables focused on the eponymous Jack Horner, the spin-off also allowed Willingham and Sturges to expand upon the Fables Universe by adding new characters, settings, and anthropomorphic personifications of philosophical and literary ideas in the series. The idea for the spin-off comic came after editor Shelly Bond suggested to put Jack in a separate comic when Willingham planned to write him out of the series. The story focuses on the adventures of Jack Horner, a supporting character in the main series, that takes place after his exile from Fabletown in the story-arc Jack Be Nimble. Jack of Fables is a spin-off comic book series of Fables written by Bill Willingham and Lilah Sturges and published by DC Comics' Vertigo imprint. Tony Akins, Andrew Pepoy, James Jean, Brian Bolland Cover to issue #1 of Jack of Fables (September 2006).
